SG not accepting secret string during Radius configuration that says:
Release : 6.7.x or 7.x
Component : Authentication
There might be configuration set on the SG that rejected the radius realm secret. To identify this, suggest to use CLI commands to see an actual error:
enable
conf t
security radius edit-realm <your radius realm>
alternate-server secret <radius secret>
***The output should provide clues the cause of the error***
E.g.
enable
conf t
security radius edit-realm rad_test
alternate-server secret passw
% Password does not meet minimum length (6) << sample of meaningful message
Two options:
1. Reconfigure radius server's secret that complies with minimum length SG required or;
2. Relax the minimum length requirement on SG side.
e.g.
enable
conf term
security password-min-len <#>